Treatment FAQ

what is lasik treatment

by Ramon Lubowitz Published 2 years ago Updated 2 years ago
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Is LASIK eye surgery worth it?

Lasik eye surgery may be pitched as a "safe and easy ... Our report can help make sure you get your money's worth. The package includes: Consumer Reports asked almost 800 U.S. adults who have ...

What to expect after LASIK?

  • The first 6 hours post LASIK: Keep your eyes closed and avoid bright lights. ...
  • The first 24 hours after LASIK: Continue to avoid straining your eyes as much as possible. ...
  • 1 to 2 weeks post LASIK: You can usually begin exercising within a week after LASIK surgery, but you should continue to avoid contact sports for at least a month. ...

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What is the best type of LASIK surgery for You?

  • STAR S4 IR Excimer Laser System and iDesign Advanced WaveScan Studio System (Johnson & Johnson)
  • Allegretto WAVE Eye-Q Excimer Laser System (Alcon)
  • TECHNOLAS 217Z Zyoptix System for Personalized Vision Correction (Bausch + Lomb)
  • Nidek EC-5000 with Navex Quest customization (Nidek)
  • MEDITEC MEL 80 Excimer Laser System (Zeiss)

Who qualifies for LASIK eye surgery?

You should be within the age range. Ideally, you should be above 18 years old to be cleared for LASIK. However, your eye surgeon may advise you to wait until you are at least 25, the age at which adult vision stabilizes. While there is no upper limit for LASIK, some factors should be considered.

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Is LASIK good for eyes?

In general, you have a very good chance of achieving 20/25 vision or better after refractive surgery. More than 8 out of 10 people who've undergone LASIK refractive surgery no longer need to use their glasses or contact lenses for most of their activities.

Is a LASIK painful?

Fortunately, LASIK eye surgery is not painful. Right before your procedure, your surgeon will place numbing eye drops into both of your eyes. While you may still feel a little bit of pressure during the procedure, you should not feel any pain.

Is LASIK eye permanent?

“LASIK surgery is permanent, with a few exceptions,” ophthalmologist and Manhattan Eye director Yuna Rapoport, MD, tells WebMD Connect to Care. “There is a chance that the prescription and correction can regress, and the vision regresses slightly back to what it was before.

What is LASIK used to treat?

LASIK is most often done on people who use glasses or contact lenses because of nearsightedness (myopia). It is sometimes used to correct farsightedness. It may also correct astigmatism. The FDA and American Academy of Ophthalmology have developed guidelines for determining LASIK candidates.

Can you go blind from LASIK?

MYTH #2: You will go blind. Actually, as of this writing, there are no reported cases of blindness due to LASIK surgery itself. In a recent study, it was discovered that patients actually have a 34 times higher risk of going blind from a contact lens infection than going blind from LASIK.

What age is recommended for LASIK?

In general, the average age range for getting LASIK is between 20 and 40 years of age. The FDA has approved LASIK eye surgery for those 18 years and older, but most providers will encourage patients to wait until their mid-20s after their prescription has stabilized.

Can you get glasses after LASIK?

You can wear glasses or contact lenses after LASIK, and if your vision is continuing to change as your refractive error returns or changes, you may find you need them again.

Can I get LASIK twice?

Is it possible to have LASIK surgery twice? The short answer is yes, though this is usually only done 5 – 10 years after the initial treatment. However, rest assured that LASIK offers long-term vision correction, and very few people require a second session.

What are the risks of LASIK?

July 27, 2018 -- Dry eyes, glare, halos, and starbursts are all possible side effects of LASIK surgery. But some people may also get long-term complications like eye infections, vision loss, chronic pain, and detached retinas.

How long does LASIK take to heal?

Although you will quickly notice a significant improvement in your vision, recovering from LASIK is an ongoing process. Full recovery varies by patient, and it may take three to six months for your vision to fully stabilize. During this time, your LASIK surgeon will meet with you regularly to check on your vision.

Who is a good candidate for LASIK?

Good candidates are 21 years and older, have good eye and general health, with stable prescriptions (for at least one year). Talking Points: LASIK is generally safe and effective for correcting myopia, hyperopia, and astigmatism. About 94-100% of patients with low-to-moderate myopia achieve 20/40 vision or better.

Can LASIK fix lazy eye?

LASIK is a laser eye surgery which improves vision by correcting refractive vision issues. LASIK can help correct lazy eye, but only when it's caused by a difference in the refractive error between both eyes (refractive amblyopia).

What Does Lasik Eye Surgery involve?

There are several variations of laser refractive surgery. LASIK is the best known and most commonly performed. Many articles, including this one, w...

Do You Understand Possible Side Effects and Complications?

While complications that result in a loss of vision are rare, certain side effects, particularly dry eyes and temporary visual disturbances are fai...

Lasik Versus Reading Glasses

By their early to mid-40s, all adults lose some ability to focus on nearby objects (presbyopia), which results in difficulty reading small print or...

Can You Go Without Your Contact Lenses For Several Weeks Before Surgery?

This is usually not an issue, but know that you'll have to completely stop wearing your contact lenses and switch to glasses for at least a few wee...

What Are Your Expectations For Lasik?

Most people who undergo LASIK surgery will have good to excellent vision in most situations, for many years or decades. You'll be able to play spor...

How Do You Choose An Eye Surgeon?

Most people don't have firsthand knowledge about LASIK or an eye surgeon. A good starting point when choosing an eye surgeon is to talk with the ey...

What is refractive surgery?

Surgical procedures aimed at improving the focusing power of the eye are called refractive surgery. In LASIK surgery, precise and controlled removal of corneal tissue by a special laser reshapes the cornea changing its focusing power. (See what should I expect before, during, and after surgery .)

What is PRK laser?

PRK was the first surgical procedure developed to reshape the cornea, by sculpting, using a laser. Later, LASIK was developed. The same type of laser is used for LASIK and PRK. Often the exact same laser is used for the two types of surgery.

What is the procedure to reshape the cornea?

Radial Keratotomy or RK and Photorefractive Keratectomy or PRK are other refractive surgeries used to reshape the cornea. In RK, a very sharp knife is used to cut slits in the cornea changing its shape. PRK was the first surgical procedure developed to reshape the cornea, by sculpting, using a laser. Later, LASIK was developed.

What part of the eye helps focus light?

The cornea is a part of the eye that helps focus light to create an image on the retina. It works in much the same way that the lens of a camera focuses light to create an image on film. The bending and focusing of light is also known as refraction. Usually the shape of the cornea and the eye are not perfect and the image on ...

What is the top layer of the cornea called?

In PRK, the top layer of the cornea, called the epithelium, is scraped away to expose the stromal layer underneath. In LASIK, a flap is cut in the stromal layer and the flap is folded back. Another type of refractive surgery is thermokeratoplasty in which heat is used to reshape the cornea.

What is lasik surgery?

LASIK is a type of refractive eye surgery. In general, most people who have laser-assisted in-situ keratomileusis (LASIK) eye surgery achieve 20/25 vision or better, which works well for most activities. But most people still eventually need glasses for driving at night or reading as they get older.

Why do you need reading glasses after lasik surgery?

LASIK surgery removes this near focus because the nearsightedness has been corrected. This means that as you get older you will need to use reading glasses. Many people are happy to trade clear distance vision when they are younger for having to wear "cheaters" for reading when they are older.

What is the term for blurry vision?

With nearsightedness (myopia), farsightedness (hyperopia) or astigmatism, they end up being focused elsewhere, resulting in blurred vision. Nearsightedness (myopia) is a condition in which you see nearby objects clearly, but distant objects are blurry.

How long does it take for a tear to heal after lasik surgery?

Dry eyes. LASIK surgery causes a temporary decrease in tear production. For the first six months or so after your surgery, your eyes may feel unusually dry as they heal.

What is the best laser eye surgery?

LASIK is the best known and most commonly performed. Many articles, including this one, will use the term "LASIK" to refer to all types of laser eye surgery. Normally, images are focused on the retina in the back of your eye.

What is keratoconus eye?

An eye disease that results in a progressive deterioration of your vision and thinning of your cornea (keratoconus). In fact, if keratoconus runs in your family, even if you don't have it, be very cautious about elective eye surgery. Keratitis, uveitis, herpes simplex affecting the eye area, and other eye infections.

How old do you have to be to get lasik?

Therefore, people must be over age 18, and preferably older, before considering LASIK eye surgery.

What is lasik surgery?

What Is LASIK Eye Surgery? LASIK, which stands for laser in-situ keratomileusis, is a popular surgery that can correct vision in people who are nearsighted or farsighted, or who have astigmatism.

How long has lasik been around?

LASIK Eye Surgery Benefits. The benefits of LASIK include: It’s been around for over 25 years. About 96% of patients reach their vision goals afterward. An enhancement can raise this number even more. There’s very little, if any, pain involved. There aren’t any bandages or stitches.

What are the health issues that can cause a person to have a clear vision?

Have thin or uneven corneas. Have eye conditions such as glaucoma or very dry eyes. Have other health issues such as diabetes, lupus, or rheumatoid arthritis. LASIK - clear vision without contacts or glasses!

How long does it take for your eyes to heal after cataract surgery?

Most patients notice better vision within a few days. Call your doctor if you have any problems or unusual side effects. Don’t swim or use a hot tub for 2 weeks after surgery. You might get a plastic shield to protect your eyes while you’re sleeping for a few days.

What to expect before lasik?

Before LASIK, you’ll meet with a coordinator or eye surgeon who will talk about what to expect during and after the procedure. They’ll ask about your medical history and do a full eye exam. This may include tests to measure the thickness of your cornea, refraction, and eye pressure.

Can you use reading glasses after lasik?

Learn more about recovering from LASIK eye surgery. Your vision can still change after LASIK. You might have to use reading glasses as you get older. More than 10% of people need a second LASIK procedure some time later to restore the effects.

Does insurance cover lasik?

Rarely, you may lose your "best" correctable vision, the highest degree of vision that you had while wearing contacts or eyeglasses, after LASIK. Most insurance doesn’t cover LASIK. Some patients have discomfort in the first day or two after LASIK eye surgery. Other side effects are rare and usually go away over time.

When was lasik first used?

The LASIK technique was implemented in the U.S. after its successful application elsewhere. The Food and Drug Administration (FDA) commenced a trial of the excimer laser in 1989. The first enterprise to receive FDA approval to use an excimer laser for photo-refractive keratectomy was Summit Technology (founder and CEO, Dr. David Muller). In 1992, under the direction of the FDA, Greek ophthalmologist Ioannis Pallikaris introduced LASIK to ten VISX centres. In 1998, the "Kremer Excimer Laser", serial number KEA 940202, received FDA approval for its singular use for performing LASIK. Subsequently, Summit Technology was the first company to receive FDA approval to mass manufacture and distribute excimer lasers. VISX and other companies followed.

Who invented the laser for lasik?

A number of patents have been issued for several techniques related to LASIK. Rangaswamy Srinivasan and James Wynne filed a patent application on the ultraviolet excimer laser, in 1986, issued in 1988. In 1989, Gholam A. Peyman was granted a US patent for using an excimer laser to modify corneal curvature.

What is laser eye surgery?

LASIK or Lasik ( laser -assisted in situ keratomileusis ), commonly referred to as laser eye surgery or laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and astigmatism.

How old do you have to be to get lasik?

In the United States, the FDA has approved LASIK for age 18 or 22 and over because the vision has to stabilize. More importantly the patient's eye prescription should be stable for at least one year prior to surgery. The patient may be examined with pupillary dilation and education given prior to the procedure. Before the surgery, the patient's corneas are examined with a pachymeter to determine their thickness, and with a topographer, or corneal topography machine, to measure their surface contour. Using low-power lasers, a topographer creates a topographic map of the cornea. The procedure is contraindicated if the topographer finds difficulties such as keratoconus The preparatory process also detects astigmatism and other irregularities in the shape of the cornea. Using this information, the surgeon calculates the amount and the location of corneal tissue to be removed. The patient is prescribed and self-administers an antibiotic beforehand to minimize the risk of infection after the procedure and is sometimes offered a short acting oral sedative medication as a pre-medication. Prior to the procedure, anaesthetic eye drops are instilled. Factors that may rule out LASIK for some patients include large pupils, thin corneas and extremely dry eyes.

What are the complications of lasik surgery?

Complications due to LASIK have been classified as those that occur due to preoperative, intraoperative, early postoperative, or late postoperative sources: According to the UK National Health Service complications occur in fewer than 5% of cases.

How long after lasik do you have dry eyes?

Up to 28 percent of participants with no symptoms of dry eyes before LASIK, reported dry eye symptoms at three months after their surgery.

How many people have had lasik surgery?

As of 2018, roughly 9.5 million Americans have had LASIK and, globally, between 1991 and 2016, more than 40 million procedures were performed. However, the procedure seems to be a declining option for many in recent years.

Overview

LASIK is a type of eye surgery that uses lasers to fix vision problems, specifically those caused by refractive errors. A refractive error is where your eye fails to bend light properly, distorting your vision. It can cause, for example, blurry vision, nearsightedness and farsightedness.

Procedure Details

LASIK surgery is an outpatient procedure. You will not have to stay overnight in a hospital.

Recovery and Outlook

Recovery time from LASIK eye surgery is quick. You might be able to return to most of your normal activities as early as one day after the procedure. It might take longer for your eyes to heal if you’ve had a photorefractive keratectomy (PRK). This is because the cornea cells have to grow back.

When to Call the Doctor

Contact your ophthalmologist immediately if you’re in severe pain or if the side effects get worse. These symptoms could indicate a problem.

Additional Details

LASIK is a great option if you’re tired of wearing glasses or contacts. However, not everyone is allowed to have the procedure. Your ophthalmologist will have to determine if you’re a good candidate. Reasons why you might qualify include:

What is a lasik eye?

Laser-assisted in situ keratomileusis ( LASIK) is a common type of laser eye surgery used to treat vision problems, including nearsightedness, farsightedness, and astigmatism. During this procedure, a laser reshapes the cornea, the transparent tissue that covers the eye and helps focus light. LASIK - clear vision without contacts or glasses! ...

Where is lasik surgery performed?

LASIK surgery is typically performed in an ophthalmologist’s office or outpatient facility. Your surgeon will numb the eye with anesthetic drops. An eyelid holder is placed between the eyelids to keep them open.

How long does it take to recover from lasik surgery?

Recovery time from LASIK varies. While some people notice improved vision within days, it may take three to six months for vision to stabilize. Ask a friend or family member to drive you home after the procedure and rest.

How much vision does lasik give you?

According to the American Academy of Ophthalmology (AAO), more than 90 percent of people who undergo LASIK achieve between 20/20 and 20/40 vision. While many people experience better vision for years to decades after surgery, you may still need glasses for reading and night driving, and your vision may still worsen over time.

Why do eye drops help?

Your doctor will give you eye drops to help prevent infection and relieve dryness. Common side effects include pain, dryness, poor low-light vision, light sensitivity, and blurry vision. Severe complications, such as vision loss or infection, are rare.

Can a ophthalmologist recommend lasik?

Your ophthalmologist will review your medical history. LASIK may not be recommended for people with certain pre-existing conditions, including autoimmu ne disorders, eye injuries or diseases, severe nearsightedness, or a weakened immune system.

What is lasik treatment?

LASIK procedures can treat a wide range of prescriptions, including myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. The treatment range varies between different types of LASIK procedures. Your eye surgeon can help you determine which type of LASIK is right for you.

What is the best way to correct a high prescription for lasik?

If your prescription is too high, the surgeon may recommend an alternative procedure. A refractive lens exchange and phakic intraocular lens implant are two procedures that can correct higher prescriptions.

What happens if you have a thin cornea?

If your corneas are thin, LASIK can increase your chances of corneal ectasia , which is a vision-threatening condition that causes abnormal corneal thinning.

What percentage of lasik patients have 20/20 vision?

Studies show that 99 percent of LASIK patients reach 20/40 vision, while 90 percent of patients achieve 20/20 vision. Here are some general guidelines to determine if you are the right LASIK candidate.

What happens to your eyes after lasik surgery?

Your overall eye health determines how well your eyes heal after surgery and whether or not you are at risk for certain complications. In general, any active eye infections, inflammation, or abrasions must be resolved before you get LASIK.

How long should you have stable vision before lasik?

If you have stable vision for at least 1-2 years before LASIK, this reduces your chances of regression and needing a touch-up procedure. Stable vision does not necessarily mean your prescription cannot change at all. In most cases, a change of 0.25 or 0.5 Diopters is acceptable.

Can lasik cause dry eyes?

If you have severe dry eye syndrome, LASIK can aggravate your symptoms. Working with your eye doctor to improve your dry eyes before surgery is crucial. If you have a corneal disease such as keratoconus or corneal dystrophy, you are most likely not a good candidate for LASIK.

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Why It's Done

Eye surgery that corrects/improves vision by reshaping the clear covering on the front of the eye (cornea).

Treatment for: Near Sightedness · Hyperopia · Astigmatism · Presbyopia

Type of procedure: Noninvasive

Recovery time: Can take several days

Duration: About 10-15 minutes

Hospital stay: Not typically needed

Risks

How You Prepare

What You Can Expect

  • LASIKsurgery may be an option for the correction of one of these vision problems: 1. Nearsightedness (myopia).When your eyeball is slightly longer than normal or when the cornea curves too sharply, light rays focus in front of the retina and blur distant vision. You can see obje…
See more on mayoclinic.org

Results

  • Complications that result in a loss of vision are very rare. But certain side effects of LASIKeye surgery, particularly dry eyes and temporary visual problems such as glare, are fairly common. These usually clear up after a few weeks or months, and very few people consider them to be a long-term problem. Risks of LASIKsurgery include: 1. Dry eyes. LASIK surgery causes a temporar…
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Overview

  • Steps you can take to prepare for surgery include: 1. Know what surgery may cost you. LASIKsurgery is usually considered elective surgery, so most insurance companies won't cover the cost of the surgery. Be prepared to pay out-of-pocket for your expenses. 2. Arrange for a ride home.You'll need to have someone drive you to and from your place of surgery. Immediately aft…
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Effectiveness

  • Before the procedure
    Long-term results from LASIKtend to be best in people who are carefully evaluated before surgery to ensure that they are good candidates for the procedure. If you wear contact lenses, which can change the shape of your cornea, you'll need to completely stop wearing them and wear only you…
  • During the procedure
    LASIKsurgery is usually completed in 30 minutes or less. During the procedure, you lie on your back in a reclining chair. You may be given medicine to help you relax. After numbing drops are placed in your eye, your doctor uses an instrument to hold your eyelids open. A suction ring plac…
See more on mayoclinic.org

Risks

  • LASIKoften offers improved vision without the hassle of glasses or contact lenses. In general, you have a very good chance of achieving 20/25 vision or better after refractive surgery. More than 8 out of 10 people who've undergone LASIKrefractive surgery no longer need to use their glasses or contact lenses for most of their activities. Your results depend on your specific refractive error a…
See more on mayoclinic.org

Process

LASIK or Lasik (laser-assisted in situ keratomileusis), commonly referred to as laser eye surgery or laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and an actual cure for astigmatism, since it is in the cornea. LASIK surgery is performed by an ophthalmologist who uses a laser or microkeratome to reshape the eye's cornea in order to improve visual acuity. For most people, LASIK provides a long-lasting alternative to eyeglasses or contact l…

Wavefront-guided

In 2006, the British National Health Service's National Institute for Health and Clinical Excellence (NICE) considered evidence of the effectiveness and the potential risks of the laser surgery stating "current evidence suggests that photorefractive (laser) surgery for the correction of refractive errors is safe and effective for use in appropriately selected patients. Clinicians undertaking photorefractive (laser) surgery for the correction of refractive errors should ensure t…

Topography-assisted

Higher-order aberrations are visual problems that require special testing for diagnosis and are not corrected with normal spectacles (eyeglasses). These aberrations include 'starbursts', 'ghosting', 'halos' and others. Some patients describe these symptoms post-operatively and associate them with the LASIK technique including the formation of the flap and the tissue ablation.
There is a correlation between pupil size and aberrations. This correlation may be the result of ir…

History

The planning and analysis of corneal reshaping techniques such as LASIK have been standardized by the American National Standards Institute, an approach based on the Alpins method of astigmatism analysis. The FDA website on LASIK states,
"Before undergoing a refractive procedure, you should carefully weigh the risks and benefits based on your own personal value system, and try to avoid being influenced by friends that have had th…

Further research

Wavefront-guided LASIK is a variation of LASIK surgery in which, rather than applying a simple correction of only long/short-sightedness and astigmatism (only lower order aberrations as in traditional LASIK), an ophthalmologist applies a spatially varying correction, guiding the computer-controlled excimer laser with measurements from a wavefront sensor. The goal is to achieve a more optically perfect eye, though the final result still depends on the physician's success at pre…

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